WO2011018969A1 - Antenne et procédé de fabrication d'antenne - Google Patents

Antenne et procédé de fabrication d'antenne Download PDF

Info

Publication number
WO2011018969A1
WO2011018969A1 PCT/JP2010/063191 JP2010063191W WO2011018969A1 WO 2011018969 A1 WO2011018969 A1 WO 2011018969A1 JP 2010063191 W JP2010063191 W JP 2010063191W WO 2011018969 A1 WO2011018969 A1 WO 2011018969A1
Authority
WO
WIPO (PCT)
Prior art keywords
boom
ribs
antenna element
wall
tube wall
Prior art date
Application number
PCT/JP2010/063191
Other languages
English (en)
Japanese (ja)
Inventor
敏夫 藪下
Original Assignee
マスプロ電工株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by マスプロ電工株式会社 filed Critical マスプロ電工株式会社
Publication of WO2011018969A1 publication Critical patent/WO2011018969A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/28—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements
    • H01Q19/30—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements the primary active element being centre-fed and substantially straight, e.g. Yagi antenna
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element

Definitions

  • a hollow tubular boom is provided with a pair of through holes, and a pipe-shaped antenna element is passed through the through holes.
  • the present invention relates to a method of manufacturing the antenna and an antenna.
  • Patent Document 1 an antenna manufacturing method in which a hollow tubular boom is provided with a pair of through-holes and a pipe-like antenna element is fixed to the through-holes is widely known (for example, , See Patent Document 1).
  • the manufacturing method of the antenna element shown in Patent Document 1 is as follows.
  • means for fixing the antenna element at the locally deformed portion of the boom by greatly deforming the outer periphery of the boom locally is also provided.
  • the outer periphery of the boom is greatly deformed locally, the locally deformed portion damages the peripheral wall of the antenna element and causes corrosion.
  • the purpose of the present application is to allow the antenna element to pass through the boom through-hole, as well as to fix the antenna element to the boom.
  • Another purpose is to deform the boom by biting the two ribs provided on the left and right sides of the boom into the corresponding "sides of both sides of the peripheral wall of the antenna element", respectively.
  • the tube wall 21 of the hollow tubular boom 20 has two pairs of tube wall holes 55 for allowing the hollow tubular antenna element 19 to penetrate in the left-right direction of the boom 20.
  • the pair of tube wall holes 55 is provided with a hollow tubular antenna element 19, and the boom 20 is compressed and deformed by applying pressure to the outer periphery of the boom 20 in the vertical direction.
  • a gap 52 is formed between the inner surfaces of the left and right wall portions 25 and 27 of the tube wall 21 of the boom 20 in the vertical direction.
  • the antenna element 19 is fixed to the hollow tubular boom 20 by compressing the boom 20 from the vertical direction, and the two ribs 36 in the vertical direction. 37 between the two ribs 36, 37 disposed on the inner surface of the left wall portion and the two ribs 36, 37 disposed on the inner surface of the right wall portion. Up in each direction The four ribs 36 and 37 are moved in an oblique direction, and the four ribs 36 and 37 are respectively moved to the wall portions 80a on both sides of the peripheral wall of the corresponding antenna element 19 positioned between the ribs 36 and 37, respectively. , 80a, and the antenna element 19 is prevented from rotating and moving in the axial direction, respectively, in a state of biting into the diagonal direction.
  • the tube wall 21 of the hollow tubular boom 20 is provided with two pairs of tube wall holes 55 through which the hollow tubular antenna element 19 penetrates in the left-right direction of the boom 20.
  • the hollow tubular antenna element 19 is passed through the tube wall hole 55, and pressure is applied to the outer periphery of the boom 20 to compress and deform the boom 20 in the vertical direction.
  • each of the inner surfaces of the left and right wall portions 25 and 27 of the tube wall 21 of the boom 20 has a boom 52 in a state in which a gap 52 is formed therebetween in the vertical direction.
  • Two ribs 36 and 37 that are long in the axial direction are arranged side by side, and the cross-sectional shapes of the two ribs 36 and 37 that are respectively arranged on the inner surfaces of the left and right wall portions are protruded toward the tube interior 21b, respectively, and bulge-out.
  • D1 is set larger than the gap 52 between the left and right two ribs 36 and 37, and the left and right two ribs 36 and 37 have the two pairs of tube wall holes 55.
  • Arc-shaped attachment surfaces 56 that are flat in the axial direction of the antenna element are respectively formed on the opposing surfaces of the portions where the two are formed, and each of the two strips facing each other in the vertical direction on the inner surfaces of the left and right wall portions, respectively.
  • the thickness of the wall portion 26 located on the outer peripheral side of the gap 52 between the ribs 36 and 37 is such that the left and right wall portions 26 and 26 are separated from each other by pressurizing the boom 20 from above and below.
  • the antenna element 19 is fixed to the hollow tubular boom 20 by compressing the boom 20 from the up and down direction so that the antenna 52 is curved and projecting toward the outer periphery so as to be smaller.
  • the two ribs 36, 37 provided on the two ribs 36, 37 in the direction are arranged in the direction in which the gap between the attachment faces 56 is reduced and on the inner surface of the left wall portion.
  • the four attachment surfaces 56 are moved obliquely in the direction in which the attachment surfaces 56 associated with the two and the attachment surfaces 56 associated with the two ribs 36 and 37 disposed on the inner surface of the right wall portion are distant from each other. Then, the four attached surfaces 56 are respectively bitten into the wall portions 80a and 80a on both sides of the corresponding peripheral wall of the antenna element 19 from the oblique direction, and the antenna element 19 is rotated and moved in the axial direction. Prevent Those were cattle.
  • the tube wall 21 of the hollow tubular boom 20 is provided with two pairs of tube wall holes 55 through which the hollow tubular antenna element 19 penetrates in the left-right direction of the boom 20.
  • the hollow tubular antenna element 19 is passed through the tube wall hole 55, and pressure is applied to the outer periphery of the boom 20 to compress and deform the boom 20 in the vertical direction.
  • each of the inner surfaces of the left and right wall portions 25 and 27 of the tube wall 21 of the boom 20 has a boom 52 in a state in which a gap 52 is formed therebetween in the vertical direction.
  • Two ribs 36 and 37 that are long in the axial direction are arranged side by side, and the cross-sectional shapes of the two ribs 36 and 37 that are respectively arranged on the inner surfaces of the left and right wall portions are protruded toward the tube interior 21b, respectively, and bulge-out.
  • Shape The pair of ribs 36, 37 disposed with the gap 52 between the vertical directions is provided with the two pairs of tube wall holes 55, and the tube wall holes 55 are provided.
  • the diameter D1 of the left and right ribs 36 and 37 is set to be larger than the gap 52 between the left and right ribs 36 and 37.
  • the opposite surface side is partially blocked, and two pointed heads 58 are formed for each rib on both sides of the blocking portion.
  • the thickness of the wall portion 26 positioned on the outer peripheral side of the gap 52 between the two ribs 36 and 37 facing each other in the vertical direction is determined by pressing the boom 20 in the vertical direction so that the left and right wall portions are 26 and 26 are remote from each other and are opposed to each other in the vertical direction.
  • the gap 52 between the hubs 36 and 37 is formed so as to be curved and project toward the outer periphery so as to be small, and the antenna element 19 is fixed to the hollow tubular boom 20 by moving the boom 20 up and down.
  • the eight pointed heads 58 are moved obliquely in the direction away from each other, and the pointed heads 58 are respectively moved to the wall portions 80a on both sides of the corresponding peripheral wall of the antenna element 19, respectively.
  • the antenna element is inserted into the 80a from an oblique direction. This prevents the child 19 from rotating and moving in the axial direction.
  • the tube wall 21 of the hollow tubular boom 20 is provided with two pairs of tube wall holes 55 through which the hollow tubular antenna element 19 penetrates in the left-right direction of the boom 20.
  • the hollow tubular antenna element 19 is passed through the tube wall hole 55, and pressure is applied to the outer periphery of the boom 20 to compress and deform the boom 20 in the vertical direction.
  • each of the inner surfaces of the left and right wall portions 25 and 27 of the tube wall 21 of the boom 20 has a boom 52 in a state in which a gap 52 is formed therebetween in the vertical direction.
  • Two ribs 36 and 37 that are long in the axial direction are arranged side by side, and the cross-sectional shapes of the two ribs 36 and 37 that are respectively arranged on the inner surfaces of the left and right wall portions are protruded toward the tube interior 21b, respectively, and bulge-out.
  • Shape The pair of ribs 36, 37 disposed with the gap 52 between the vertical directions is provided with the two pairs of tube wall holes 55, and the tube wall holes 55 are provided.
  • the diameter D1 of the left and right ribs 36 and 37 is set to be larger than the gap 52 between the left and right ribs 36 and 37.
  • An arcuate attachment surface 56 that is flat in the axial direction of the antenna element is formed on the opposite surface of the portion where the tube wall hole 55 is formed, and the two pairs of tube wall holes 55 are formed.
  • the side of the opposing surface is partially blocked in the formed portion, and two pointed heads 58 are formed for each rib on both sides of the blocking portion, and are opposed to each other in the vertical direction on the inner surfaces of the left and right walls.
  • the wall portion 2 located on the outer peripheral side of the gap 52 between the two ribs 36 and 37 6 by pressing the boom 20 from above and below, the left and right wall portions 26 and 26 are far away from each other, and the gap 52 between the ribs 36 and 37 facing each other in the up and down direction is small.
  • the antenna element 19 is fixed to the hollow tubular boom 20 by compressing the boom 20 from the up and down direction to each of the up and down directions.
  • the attachment surface 56 provided on the two ribs 36 and 37 is attached to the two ribs 36 and 37 arranged in the direction in which the gap between the attachment surfaces 56 is reduced and on the inner surface of the left wall portion.
  • the four attachment surfaces 56 are moved obliquely in a direction in which the surface 56 and the attachment surfaces 56 related to the two ribs 36 and 37 disposed on the inner surface of the right wall portion are distant from each other, Each of the four attachment surfaces 56 described above.
  • Each of the two ridges formed on the two ribs 36 and 37 in the vertical direction is made to bite into the wall portions 80a and 80a on both sides of the peripheral wall of the corresponding antenna element 19 from the oblique direction.
  • the heads 58, 58 are arranged so that the gap between them in the vertical direction becomes small, and the four pointed heads 58 related to the two ribs 36, 37 arranged on the inner surface of the left wall part, and the right part
  • the eight pointed heads 58 are moved obliquely in the direction away from each other and the four pointed heads 58 related to the two ribs 36 and 37 disposed on the inner surface of the wall, respectively.
  • the above-mentioned pointed head 58 is made to bite into the wall portions 80a, 80a on both sides of the corresponding peripheral wall of the antenna element 19 from an oblique direction so as to prevent the antenna element 19 from rotating and moving in the axial direction. It is.
  • the tube wall 21 of the hollow tubular boom 20 has two pairs of tube wall holes 55 for allowing the hollow tubular antenna element 19 to penetrate in the left-right direction of the boom 20.
  • the left and right sides of the tube wall 21 of the boom 20 are Two ribs 36 and 37 that are long in the axial direction of the boom 20 in the state where gaps 52 are formed between the upper and lower directions at the upper and lower positions of the tube wall holes 55 on the inner surfaces of the wall portions 25 and 27, respectively.
  • each of the two ribs 36 and 37 disposed on the inner surfaces of the left and right wall portions is prevented from moving forward in the axial direction so as to prevent the antenna element 19 from moving in the axial direction.
  • the tip portions 57 of the ribs 36 and 37 are upper and lower walls on the outer peripheral surface 81 of the corresponding antenna element 19, respectively.
  • the concave engaging portions 86 formed on the portions 80a and 80a are respectively engaged from the oblique directions.
  • the upper and lower wall portions 80a and 80a on the outer peripheral surface 81 of the antenna element 19 are respectively on the left and right sides.
  • Each of the ribs 36 and 37 includes a concave engaging portion 86 engaged with the tip portion 57, and the antenna element 19 at the portion including the concave engaging portion 86 has a cross-sectional shape. In the dynamic non vertical dimension size in the lateral direction as compared increases in shape as it is obtained by so as to prevent the rotation of the antenna element 19, the axial movement.
  • the antenna element 19 is fixed to the boom 20 as follows. That is, the two ribs 36 and 37 respectively provided in the state where the gap 52 is formed between the upper and lower walls 25 and 27 in the tube wall 21 of the boom 20 in the vertical direction.
  • the gaps 52 between the two ribs 36 and 37 in the vertical direction are extended by curving the wall 26 between the two ribs 36 and 37 in the vertical direction so as to be largely curved toward the outer periphery.
  • the four ribs are moved obliquely in a direction in which the two ribs arranged on the inner surfaces of the left and right walls are far away from each other, and the four ribs are
  • the antenna element 19 is prevented from rotating and moving in the axial direction by biting into the wall portions 80a, 80a on both sides of the corresponding peripheral wall of the antenna element 19 from an oblique direction. Therefore, during the production work, the wall 26 between the two ribs 36 and 37 in the vertical direction is greatly increased to the outer periphery only by applying pressure so that the upper and lower wall portions of the tube wall 21 of the boom 20 are close to each other. Since the antenna element 19 can be accurately fixed to the boom 20 by curving and projecting toward the boom 20, there is an effect that the fixing operation is extremely simplified.
  • the above-mentioned “walls 26 and 26 to be curved and projecting toward the outer periphery” are provided with the strong ribs 36 provided to the inner surfaces of the left and right wall portions 25 and 27, respectively. Since the wall 26 is located in the slight gap 52 between the two, the upper and lower intermediate points of the boom 20 can be accurately obtained simply by pressurizing the upper and lower wall portions closer to each other during molding as described above. There is a feature in accuracy that can bend a specific place by a specific angle.
  • the specific wall 26 located at the upper and lower intermediate points of the boom 20 is bent toward the outer periphery so as to protrude outwardly, thereby forming a sharply curved portion.
  • the outer shape of the boom 20 can be formed into a shape reminiscent of a hexagonal shape that is extremely rare as the outer shape of this type of boom 20.
  • the cross-sectional shapes of the ribs 36 and 37 are formed so as to bulge out toward the tube interior 21b, and the opposing surfaces of the two ribs 36 and 37 on the left and right sides are formed.
  • the sides 57 are in pressure contact with the corresponding outer peripheral surface 81 of the antenna element 19 in an oblique state such that the front portions 57 approach each other, and the front portions 57 of the ribs 36 and 37 are respectively connected to the outer periphery of the corresponding antenna element 19.
  • the concave engaging portions 86 formed on the upper and lower wall portions 80a and 80a of the surface 81 are respectively engaged from the oblique directions, and the outer peripheral surface 81 of the antenna element 19 is provided with the concave engaging portions 86.
  • the cross-sectional shape of the antenna element 19 is such that the horizontal dimension is larger than the vertical dimension so that the antenna element 19 does not rotate, and the antenna element 19 rotates and moves in the axial direction. Prevent Was because it intended to, stuck antenna element 19 with respect to the boom 20 is effective to be something rigid.
  • FIG. 3B is an enlarged perspective view in which a portion indicated by reference numeral III B in FIG. 1 is partially broken.
  • A) is the partial side view of the boom before a pipe wall deformation
  • B) is the partial top view of the boom before a pipe wall deformation
  • FIGS. 4A and 4B are cross-sectional views of the boom before deformation of the tube wall.
  • FIGS. 4A and 7 are cross-sectional views taken along the line AA in FIG. 4, and FIG.
  • Sectional view, (C) is a sectional view taken along the line CC of FIGS. 4 (A) and 7.
  • (A) is the elements on larger scale shown by VI A of FIG. 5 (A).
  • (B) is the elements on larger scale indicated by VI B in FIG.
  • (C) is a partial expanded sectional view which shows the example from which the cross-sectional shape of the top part 43 of FIG. 6 (A) differs.
  • (D) is a partial expanded sectional view which shows the cross-sectional shape of a different top part further.
  • FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. The perspective view which fractures
  • FIG. 4A is a sectional view taken along the line BB in FIGS. 4A and 7, and FIG.
  • FIG. 4B is a sectional view taken along the line CC in FIGS.
  • FIG. 2 is a schematic cross-sectional view showing a state in which the antenna element is fixed to the boom, with a part broken away (the shape of the boom is after the tube wall is deformed).
  • the fracture position is the position along line AA in FIGS.
  • FIG. 2 is a schematic cross-sectional view showing a state in which the antenna element is fixed to the boom, with a part broken away (the shape of the boom is after the tube wall is deformed).
  • the fracture position is the position along the line BB in FIGS. 4A and 7, and (B) is the position along the line CC in FIGS. 4A and 7.
  • FIG. 11 is the XIII A-XIII A position in FIG. 11
  • B is the XIIIXB-XIII ⁇ B position in FIG. 12
  • C is the XIII position in FIG. C-XIII C position.
  • D) to (G) are drawings for explaining a fixed state of the antenna element with respect to the boom, and are schematic cross-sectional views showing the antenna element in a partially broken state (the display of the boom is omitted).
  • FIG. 14 shows the antenna element before deformation
  • FIGS. 14 and 15 show the antenna element after deformation.
  • E is the XIII A-XIII A position in FIG. 11
  • F is the XIII B-XIII B position in FIG. 12 (A)
  • G is the XIII position in FIG. 12 (B).
  • A) is a figure for demonstrating mutual operation
  • FIGS. 9B and 9C are schematic partial cross-sectional views for explaining details of cross-sectional shapes of the ribs 36 and 37 appearing in FIGS.
  • symbol 21a shown with a dashed-dotted line shows the outer peripheral surface position of a boom.
  • (A) is sectional drawing which shows the specific example of the boom before a deformation
  • (B) is sectional drawing which shows the specific example of the boom after a deformation
  • A) is sectional drawing which shows the specific example of the boom before a deformation
  • (B) is sectional drawing which shows the specific example of the boom after a deformation
  • reference numeral 1 denotes an antenna supported by a mast 2, for example, a known antenna used for transmission / reception of a known UHF wave.
  • reference numeral 20 denotes a hollow tubular boom
  • 16 denotes a radiator
  • 17 denotes a reflector
  • 18 denotes a waveguide.
  • reference numeral 19 denotes an arbitrary plurality of hollow tubular antenna elements, each of which is a pair of two holes drilled in the tube wall 21 at arbitrary predetermined intervals in a direction orthogonal to the axis of the boom 20.
  • Reference numeral 3 denotes a U-shaped support rod, which is connected to the mast 2 via a metal fitting 2a.
  • the free ends 3 a and 3 a on both sides of the support rod 3 are detachably connected to the boom 20 via mounting brackets 5 and 5.
  • the mounting bracket 5 integrally includes a band portion 6 formed by bending a steel plate into an inverted U shape and two support rod attachment portions 10.
  • reference numeral 6 a denotes a rib formed in a bulging shape, and is a reinforcing material for maintaining the arc shape on the lower surface of the band portion 6 on a curved surface corresponding to the outer peripheral shape of the boom 20.
  • Reference numerals 6b and 6c denote concave portions formed when an engaging convex portion is formed on the inner pocket portion 7 side of the band portion 6. The engaging convex part on the inner pocket part 7 side in the concave part 6 c can be engaged with the muscle 31.
  • the shape of the inner pocket portion 7 of the band portion 6 is made to correspond to the outer diameter shape of the boom 20, and the inner peripheral surface of the inner pocket portion 7 is the outer peripheral surface 21 a of the boom 20 by tightening the support rod attachment portions 10, 10. 2 and loosening the support rod attachment portions 10 and 10, the outer peripheral surface 21 a of the boom 20 can be rotated within a range of 90 degrees away from the inner peripheral surface of the inner pocket portion 7 (FIG. 2). 1 to the state shown in FIG. 1).
  • Reference numeral 8 denotes a known long hole, which allows relative movement in the rotational direction within a range of 90 degrees with respect to a screw screwed into the boom 20 (for rotation prevention).
  • Reference numeral 9 denotes a positioning mark, which is formed in a protruding shape in order to show a position corresponding to the line 31 provided on the upper part of the tube wall 21 of the boom 20 in the assembled state of FIG.
  • Reference numeral 12 denotes a bolt head for tightening or loosening the support rod attachment portions 10 and 10.
  • the same part as the rib 6a may be provided at the position of the concave part 6c without providing the concave part 6c.
  • the antenna 1 is often used with the antenna element 19 protruding left and right (horizontal direction) with respect to the boom 20 in the state shown in FIG.
  • it may be used with the antenna element 19 facing up and down. Therefore, those skilled in the art change the names of the top, bottom, left and right according to the form of use. From such circumstances, in the present case (claims, description, drawings), in the usage of terms above, below, left and right, for convenience of explanation, it is assumed that it is used in the state of FIG.
  • the projecting direction of the antenna element (element) 19 is described as “left and right”, and the top and bottom in the drawing of FIG. 1 are referred to as “up and down” as they are.
  • the boom 20 shown in FIGS. 4 to 10 shows a state before the boom pipe wall 21 is deformed.
  • the boom 20 is made of an aluminum alloy (for example, aluminum A6063-T5) or an arbitrary hard material that can be plastically deformed.
  • the cross-sectional shape of the tube wall 21 of the boom 20 is a polygonal shape surrounded by wall portions 23 to 29 (first wall to seventh wall) shown in FIG.
  • the wall portions 23 and 29 constitute the upper and lower walls, and the wall portions 24 to 28 constitute the left and right walls.
  • the dimension H1 between the outer peripheries of the upper and lower wall portions 23 and 29 is set larger than the dimension W1 between the outer peripheries of the left and right fourth walls 26 (for example, about 1.5 to 2.0 times).
  • the shape surrounded by the wall portions 23 to 29 (first to seventh walls) shown in FIG. 5 can be referred to as an oval shape.
  • the upper and lower walls formed by the wall portions 23 and 29 and the left and right walls formed by the wall portions 24 to 28 are obtained after plastically deforming the cross-sectional shape of the boom 20 as shown in FIG.
  • the upper and lower sides and the left and right sides are divided with reference to the axis of the antenna element 19 about 45 degrees obliquely with the axis of the antenna element 19 as the base axis. Therefore, the substantial original part (part integrated with the walls 25 and 27) of the ribs 36 and 37 is located on the left and right walls.
  • reference numerals 23 to 29 denote first to seventh walls shown in FIGS.
  • the first wall 23 and the seventh wall 29 are used on the upper surface of the boom 20, the upper surface is formed in an arc shape as shown in the figure to prevent excessive snow accumulation.
  • the second wall 24 is formed thicker than the fourth wall 26 by sequentially increasing the thickness from the upper side toward the rib 36.
  • Ribs 36 and 37 are integrally formed inside the third wall 25 and the fifth wall 27 between the second wall 24 and the fourth wall 26 and between the fourth wall 26 and the sixth wall 28. It is made to prepare and is strong. In the process of pressurizing the boom 20 from the state of FIG. 9 toward the state of FIG.
  • the fourth wall 26 bends greatly compared to other wall portions and appears in FIG. 11.
  • the thickness is thinner than the upper and lower adjacent walls so that it can be deformed into an arc shape. Therefore, it can also be called a thin wall.
  • the sixth wall 28 is formed to have a thickness larger than that of the fourth wall 26 by sequentially increasing the thickness from the bottom toward the rib 37.
  • reference numerals 31 and 32 shown in FIGS. 3, 4, 6 (B), and 8 indicate markers for indicating the center position of the upper and lower sides of the boom 20 when the antenna is used with the antenna element 19 in a horizontal state. Is shown and protruded (recessed). 31L and 31R indicate lines provided in parallel on both sides of the lines 31 and 32, respectively. When poles (tilts) are inclined, they are used as marks for adjusting the inclination of the antenna element 19 with respect to the inclination. be able to.
  • a gap 52 is formed between the inner surfaces of the left and right wall portions (the left and right third walls 25 and the left and right fifth walls 27) of the tube wall 21 of the boom 20 shown in FIGS.
  • two long ribs 36 and 37 are arranged side by side in the axial direction of the boom 20.
  • the respective original portions 36a, 37a of the first rib 36 and the second rib 37 are formed integrally with the third wall 25 and the fifth wall 27 of the tube wall 21 and are formed integrally with each other. Reinforce the thickness of the part.
  • Reference numeral 43 denotes a top portion formed between the fourth peripheral surface 41 and the third peripheral surface 40 of the first and second ribs 36 and 37.
  • the cross-sectional shapes of the first and second ribs 36 and 37 are made to protrude toward the tube interior 21b as shown in FIGS. 6A, 6C, and 6D, for example, and the entire cross-sectional shape is a mountain shape (bulging shape). ).
  • a top portion (ridge line) 43 is formed at a position close to the facing surfaces of the first and second ribs 36 and 37 facing each other in the vertical direction.
  • Reference numerals 38 to 42 denote first to fifth peripheral surfaces of the first rib 36 and the second rib 37, respectively.
  • the first peripheral surface 38 and the fifth peripheral surface 42 are built-up portions for preventing unexpected deformation, and the third peripheral surface 40 and the fourth peripheral surface 41 are added as shown in FIGS.
  • the eight pointed heads 58 are inclined to the inclined surface so that the designed biting state can be obtained without losing the reaction force from the antenna element.
  • the boom 20 having the four ribs 36 and 37 on the inner surface can be manufactured by extrusion as is generally known.
  • the mutual positional relationship among the third peripheral surface 40, the top 43, the fourth peripheral surface 41, and the like is well shown in detail in the partial enlarged cross-sectional views of FIGS. 6 (A) and 6 (C).
  • the fourth peripheral surface 41 is shown in FIG.
  • the surface of the hole 55 is parallel to the axis 55a.
  • the fourth peripheral surface 41 can be used as an attachment surface 56 described later.
  • the first peripheral surfaces 38 of the first rib 36 and the second rib 37 in FIG. 6D are the first peripheral surface 38, the second peripheral surface 39, and the third peripheral surface 40 in FIG. FIG. 7 shows a shape in which the formed protruding portion is eliminated, and the first peripheral surface 38 and the top portion 43 of FIG. 6A are linearly connected. Therefore, a member corresponding to the protruding portion 38a formed by the first peripheral surface 38, the second peripheral surface 39, and the third peripheral surface 40 of FIG.
  • a plurality of hollow tubular antenna elements 19 are penetrated in the left-right direction using known means.
  • a plurality of the tube wall holes 55 are perforated and formed at predetermined intervals.
  • the diameter D1 of the tube wall hole 55 is set to a correspondingly large dimension so that the outer diameter D2 of the antenna element 19 can be inserted. And it is formed larger than the gap
  • the dimensions do not exceed the distance between the outer sides of the two ribs 36 and 37. Therefore, when the tube wall hole 55 is formed, as shown in FIGS. 5B, 5C, and 8, the fourth peripheral surface 41 side of each of the ribs 36 and 37 is also one of the third peripheral surface 40 side. Each part is also cut off, and arcuate attachment surfaces 56 as shown in the figure are formed there. The length in the axial direction of the antenna element on the attachment surface 56 is longer than the wall thickness dimensions of the third wall 25 and the fifth wall 27, respectively. Furthermore, as shown in FIG. 8, the continuity of the top portions 43 of the two ribs on the left and right sides in the boom 20 is cut off at the positions where the tube wall holes 55 are provided.
  • two ribs (36) on the upper and lower ribs 36, 37, the third peripheral surface 40, and the attachment surface 56 are provided with two pieces ( A sharp tip 58 like a sharp fang is formed in all ribs.
  • the interval 53 in the boom axis direction between the pointed heads 58 and 58 is smaller than the diameter D1 of the tube wall hole 55.
  • the hollow tubular antenna element 19 is passed through the two pairs of tube wall holes 55 as usual. In this state, as shown in FIGS. 7, 9, and 10, the antenna element 19 is supported by the two upper and lower attachment surfaces 56 and the four pointed heads 58 on the left and right ribs 36 and 37, respectively.
  • the boom 20 of FIG. 9 is pressurized from above and below using any means, so that the cross section of the boom 20 is deformed as shown in FIG. Is also displaced so that the upper and lower top portions 43, 43 approach each other, and the attached surface 56 is bitten into the peripheral wall 80 of the antenna element 19.
  • the operations of the tube wall 21 of the boom 20, the upper and lower ribs 36 and 37 in the boom, and the antenna element 19 located in the boom 20 will be sequentially described in detail below with reference to FIGS.
  • the mold 70 is a concave portion, which has a shape corresponding to the outer peripheral shape of the boom 20 to be finished (the outer peripheral shape of the boom in FIG. 11).
  • the length of the mold 70 in the longitudinal direction is arbitrary, and may be long so that a plurality of antenna elements 19 can be fixed simultaneously.
  • the facing surfaces 70 a and 70 b of the upper and lower press dies 70 are brought close to the arrows 35 a and 35 b, the first wall 23 and the seventh wall portion 29 of the boom are brought into contact with the press dies 70. Moves in a direction approaching each other when pressed (approximately 83%).
  • the left and right fourth walls 26, 26 spread in a direction away from each other (directions of arrows 35c, 35d). At this time, as shown in FIG. 9, it is thinner than the portion where the upper and lower ribs 36 and 37 are present and the bending resistance is weakened, or the presence of the tube wall hole 55 as shown in FIG. The bending force is weak, and each of the wall portions 26 is deformed in a bulging shape left and right so as to be along the inner wall surface of the recess 71 as shown in FIG. With the movement of the upper and lower wall parts 23 and 29 and the movement of the left and right fourth walls 26 and 26, the upper half wall part 24 spreads in a square shape, and the lower half wall part 28 Spreads in a reverse C shape.
  • Reference numeral 72 denotes a missing portion (element storage space).
  • the outer shape of the boom 20 is symmetric in appearance with the upper three walls (23, 24, 24) and the lower three walls (28, 28, 29). It exhibits a well-balanced hexagonal shape. Therefore, the appearance is improved and the commercial value is increased.
  • the hexagonal shape may be approximate, as long as it looks beautiful when viewed from an appropriate distance, for example, by looking at the outer shape of the boom from a place about 2 to 3 m away.
  • the patterns and the strips 31, 31L, 31R it is possible to change the design image of the antenna. Further, the effect of slipping the mounting bracket 5 can be expected.
  • FIG. 14 (A) shows the boom wall 21, the ribs 36 and 37, the pointed head 58, the attachment surface 56, the corner 57, and the antenna element 19 shown in FIGS.
  • FIGS. It is a figure used in order to explain operation
  • symbol G1 part of FIG. 10 and the outline of the G2 part of FIG. 12 are accumulated, and it can explain the movement of each part partially. Therefore, from the partial movement of this figure, all the corresponding movements of the respective parts shown in FIG. 10 and FIG. 12 can be assumed and become clear.
  • the positions of the pointed head 58, the wall 23, and the like indicated by the alternate long and short dash line indicate the state of FIGS.
  • the positions of the pointed head 58, the wall 23, and the like indicated by solid lines indicate the molding completed state, that is, the states of FIGS.
  • FIG. 14A when the wall 23 indicated by the alternate long and short dash line is pressed in the direction of the arrow 35a and displaced in the solid line direction as described above, the wall 26 indicated by the alternate long and short dash line is interlocked with the displacement as described above. As a result, the wall 26 is bent and displaced to the position indicated by the solid line.
  • the pointed head 58 is displaced from the position of the alternate long and short dash line to the position of the solid line by drawing a circular locus S5.
  • the displacement locus S5 is directed in the direction of the arrow 35d while drawing a descending curve as shown.
  • the movement of the cusp 58 described above includes two cusps 58 that exist on the top and bottom of the tube wall 21 on the left and right sides. As a pair, “displace while reducing the distance between each other” at the same time.
  • the thin wall 26 located on the outer peripheral side of the gap 52 between the two ribs 36 and 37 in the vertical direction is curved toward the outer periphery so as to be bent and protruded in the vertical direction.
  • the four ribs 36 and 37 are moved obliquely in the direction in which they are far from each other, and the inner sides of the four ribs 36 and 37 (the fourth in FIG. 6C).
  • the displacement of the attachment surface 56 and the corner 57 will be described with reference to FIG.
  • the attachment surface 56 and the corner 57 are formed by moving the wall 23 at the one-dot chain line position in the direction of the arrow 35a, so that the arc trajectory from the one-dot chain line position toward the solid line position is obtained.
  • Displace by drawing S6 In the process of the displacement, “trajectory S6 has a downward curve” is drawn, and as shown in the figure, the horizontal surface of the attachment surface 56 (the surface parallel to the axis of the antenna element) is shown in FIGS.
  • the outwardly inclined surface 56 (for example, around 20 degrees (about 15 to 27 degrees) with respect to the axis of the antenna element) for preventing the antenna element from moving in the axial direction.
  • the angle of deformation is obtained.
  • the deformation operation makes the cross-sectional shape of the antenna element non-circular and prevents the antenna element from rotating.
  • the movement of the attachment surface 56 described above is as follows. As shown in FIGS. 10 (A), 12 (A), and 14 (A), the attachment surfaces 56 and the corner portions 57 that exist on the upper and lower sides of the tube wall 21 are provided. As a pair, “displace while reducing the distance between each other” at the same time.
  • the deformation state of the peripheral wall 80 of the antenna element 19 is as follows.
  • the pointed heads 58 of the boom 20 are bitten into the left and right wall portions 80a of the peripheral wall 80 of the corresponding antenna element 19 (see FIG. 12B), and in the biting state,
  • the ribs 36 and 37 are bitten in a state of being close to the tube interior 21b so that a part of the ribs 36 and 37 is positioned on the line 44 connecting them.
  • transformation condition of the surrounding wall 80 of the antenna element 19 including said point, as mentioned above, the eight pointed heads 58, the four attachment surfaces 56, and each corner
  • FIGS. 13A to 13C are diagrams for explaining a state in which the antenna element 19 is fixed to the boom 20, and are schematic cross-sectional views (antenna element 19) showing the boom 20 after being partially broken. Is omitted).
  • (A) is the XIII A-XIII A position in FIG. 11
  • (B) is the XIII B-XIII B position in FIG. 12 (A)
  • (C) is the XIII position in FIG. 12 (B).
  • C-XIII C position are drawings for explaining a fixed state of the antenna element 19 with respect to the boom 20, and are schematic sectional views showing the antenna element 19 partially broken (the display of the boom 20 is omitted).
  • (D) shows the antenna element 19 before deformation
  • (E) to (G) show the antenna element 19 after deformation.
  • (E) is the XIII A-XIII A position in FIG. 11
  • (F) is the XIII B-XIII B position in FIG. 12 (A)
  • (G) is the XIII position in FIG. 12 (B).
  • the antenna element 19 As shown in FIG. 13E, the peripheral wall 80 is compressed in the vertical direction by the movement of the portions of the attachment surfaces 56 and the corner portions 57, respectively. Between the corner portions 57 and 57, the peripheral wall 87 is crushed in the vertical direction and bulged in the horizontal direction (having a dimension of D6 larger than D2). And the dimension D5 of an up-down direction is crushed slightly small compared with the diameter D2 (refer FIG.13 (D)) before a deformation
  • the dimension between the concave engaging portions 86 and 86 that are in contact with the corner portions 57 and 57 of the attached surface is the smallest as shown by D7 (between the corner portions 57 and 57 in FIGS. 13A and 13B).
  • D7 the dimension between the concave engaging portions 86 and 86 that are in contact with the corner portions 57 and 57 of the attached surface
  • D3 the dimension between the concave engaging portions 86 and 86 that are in contact with the corner portions 57 and 57 of the attached surface.
  • the dimension D8 in the vertical direction of the peripheral wall 80 at the portion in contact with the pointed heads 58, 58 is slightly larger than D7.
  • deformation is performed while reducing the vertical dimension of each part of the peripheral wall 80 (deformation so as to satisfy the size of D2>D5>D8> D7), and eventually FIG. 12 (A) and FIG. 13 (F). It transforms into the state of.
  • these deformed portions also appear in the planar shape of the antenna element 19 as shown in FIG.
  • the portion of the pointed heads 58 in FIG. 14A is in the process of drawing a gentle arc-shaped locus S5 from the one-dot chain line position toward the solid line position. Then, the both side walls 80a of the peripheral wall 80 of the antenna element 19 are vertically dimensioned by compressing the portions of the attachment surface 56 and the corner portion 57 in the vertical direction from the state shown in FIG. As shown in FIGS. 13E, 13F, and 13G, the peripheral wall 80 is moved by the movement of the pointed head 58 that sequentially spreads in the left-right direction and moves in parallel. Both side walls 80a are deformed into the states shown in FIGS.
  • the eight pointed heads 58 are in the process of drawing a gentle arc-shaped locus S5 from the one-dot chain line position (position in FIG. 10B) in FIG. 14A toward the solid line position.
  • the ribs 36 and 37 move in a state of being close to the tube interior 21b so that a part of the ribs 36 and 37 is positioned on the line 44 connecting the tops of the ribs 36 and 37 opposite to each other.
  • both side walls of the peripheral wall 80 of the antenna element 19 are located. It is possible to exert a large force that can sufficiently counter the large reaction force from 80a.
  • FIG. 15 showing the deformation state of the antenna element 19, the concave engaging portions 86 and 86 appearing at the upper portion of the outer peripheral surface 81 of the peripheral wall 80 are the corner portions 57 of the attached surface 56 in FIG.
  • 83 and 83 the corner portion 57 draws a gentle arc-shaped locus S6 from the one-dot chain line position in FIG. 14A toward the solid line position and strongly rubs and compresses on the upper part of the outer peripheral surface 81.
  • Reference numerals 84 and 84 denote slopes that are pressed and deformed by the attachment surface 56.
  • 82 and 82 indicate that the attached surfaces 56 and 56 strongly strengthen the upper portion of the outer peripheral surface 81 in the process of drawing a gentle arc-shaped locus S6 from the one-dot chain line position in FIG.
  • Reference numeral 85 denotes a biting portion formed in the bulging portion 82.
  • the biting portion 85 appears in FIG. 13G in a process in which the pointed head 58 is displaced from the one-dot chain line position of FIG. 14A toward the solid line position while drawing a gentle arc-shaped locus S5.
  • the antenna element fixing portion in the pipe of the boom 20 is in the state described with reference to FIGS.
  • the antenna element 19 is as if wedges are struck from the radial direction to the wall portions 80 a and 80 a on both sides of the peripheral wall by the eight pointed heads 58.
  • the movement of the antenna element 19 in the axial center (axis) direction is prevented, and the circumferential rotation is also reliably prevented.
  • the concave engaging portion 86, the biting portion 85, and the like on the outer peripheral surface 81 of the antenna element 19 are located inside the tube of the boom 20, that is, between the tube wall outer peripheral surfaces 21a and 21a of FIG. 15 (W2). It is located and has a long life without being exposed to rainwater.
  • the “tube wall hole 55 of the tube wall hole 55 exists between the portion where the concave engaging portion 86, the biting portion 85, etc. are formed and the tube wall outer peripheral surfaces 21 a and 21 a of the boom.
  • the portions 81a that contact the inner surface are in close contact with the inner surfaces of the corresponding tube wall holes 55 and are softly supported, so that the antenna elements 19 protrude from the left and right tube wall holes 55 of the boom 20. There is no place where concentrated stress is applied to the base part, which must be specially considered, and the base part of the boom is maintained with a long life.
  • the portions pressing the peripheral wall 80 of the antenna element are the wall portions 80a and 80a on both sides of the peripheral wall 80 of the antenna element 19, and the wall portions 80a on both sides
  • the direction in which 80a is pressed is the tangential direction (vertical direction in FIG. 13G) at the wall portions 80a, 80a on both sides of the antenna element 19, and a sufficiently large reaction force from the peripheral wall side of the antenna element 19 is obtained.
  • the eight pointed heads 58, the four attachment surfaces 56, and the corners 57 which are the front ends thereof are supported by strong ribs 36 and 37, the peripheral wall of the antenna element
  • the biting state of the four pointed heads on each of the left and right sides is solid and can be sustained for a long time, and a reliable fixed state can be obtained.
  • the thickness of the wall 26 located outside the gap 52 between the two ribs 36 and 37 facing each other in the vertical direction on the inner surfaces of the left and right wall portions is determined by adding the boom 20 from the vertical direction.
  • the left and right wall portions 26, 26 shown in FIG. 11 are far away from each other, and the gap 52 between the ribs 36, 37 facing each other in the vertical direction is greatly reduced toward the outer periphery. It is formed on the thinnest wall 26 so as to be curved and project.
  • the inner surfaces (seventh circumferential surface 45) of the fourth walls 26, 26 and the outer surface thereof are configured in parallel so that the wall thickness is uniform (for example, around 1.2 mm).
  • the vertical section 26a of the seventh peripheral surface 45 in FIG. 14B is smaller than the gap 52 (for example, 4 to 4.5 mm), and in the vertical direction in FIG. It is set to be larger than 1.5mm).
  • the section 26a is about ⁇ 0.5 mm centered on 3 mm.
  • the sixth peripheral surface 42a and the fifth peripheral surface 42 are inclined so as to gradually increase the thickness toward both sides in order to avoid stress concentration on both the upper and lower sides of the fourth walls 26, 26.
  • the vertical section on the outer surface of the thin wall 26 is slightly larger than the length of the vertical section 26a of the seventh peripheral surface 45, and is shown in FIGS.
  • the outer peripheral surface is stretched in the state after being bent as shown in FIG. 14C, and is set slightly larger in consideration of these points.
  • the size of the gap 52 is set as a guide (for example, about 4 mm to 5 mm).
  • the pressurization operation from the vertical direction using FIGS. 9 and 11 is performed.
  • the thin-walled walls 26 present at positions deviated from the center point of the boom 20 to the left and right are respectively in the vertical section 26a.
  • the thin wall 26 is evenly curved in a state of bulging toward the outer periphery. In this way, the large reaction force required for evenly bending the thin wall 26 of uniform thickness over the up-and-down section 26a is simultaneously applied to the ribs 36 and 37 in the state of FIG. In the meantime, the effect of increasing the tightening force on the antenna element 19 occurs.
  • FIG. 16A shows a specific dimensional diagram of the tube wall 21 and the first and second ribs 36 and 37 in the cross-sectional shape of the boom 20 before deformation.
  • FIG. 16B shows a specific dimensional diagram of the tube wall 21 and the first and second ribs 36 and 37 (four ribs 36 and 37) in the cross-sectional shape of the boom 20 after deformation. Note that the actual size between the left and right top portions 43 and 43 in FIG. 16A is about 6.6 mm, and the actual size after being expanded between the left and right top portions 43 and 43 in FIG. 16B is about 15 mm. The expansion in the left and right direction is about 2.3 times.
  • FIG. 17A shows the tube wall 21 and the first and second ribs 36 and 37 in the boom 20 whose elliptical cross-sectional shape before deformation, the attachment surface 56, the corner 57, the pointed head 58, A specific dimensional relationship with the antenna element 19 is shown.
  • FIG. 17B shows the cross-sectional shape of the boom 20 after deformation into a shape that has a rounded cross-sectional shape that seems to be a hexagonal shape.
  • FIG. 18 is a schematic diagram showing the cross-sectional shapes of the booms respectively shown in FIGS. 16A and 16B in order to compare the bending angles with each other. 16, 17, and 18, parts that are considered to have the same or equivalent configuration, functions, properties, means, features, etc. as those of FIGS. A duplicate description is omitted.
  • Strain 36 ... First rib 37 ... Second rib 38 ... First circumferential surface 39 ... Second circumferential surface 40 ... Third circumferential surface 41. .. fourth circumferential surface, 42... Fifth circumferential surface, 43. ⁇ Gap, 53 ... Gap, 55 ... Pipe wall hole, 56 ... Attachment surface, 57 ... Corner, 58 ... Point, 70 ... Mold, 71 ... Recessed portion, 72 ... missing portion (element storage space), 80 ... peripheral wall, 80a ... wall portion, 81 ... outer peripheral surface, 82 ... bulging portion in the outer peripheral direction, 83 ... Slope, 84... Slope, 85 .. biting portion, 86 .. concave engagement portion, 87...
  • H1 Arch-shaped peripheral wall, H1... Dimension between the outer peripheries of the upper and lower wall portions in the boom before deformation , W1: Dimensions between the outer circumferences of the left and right fourth walls of the boom before deformation, H2: Dimensions between the outer circumferences of the upper and lower wall portions of the boom after deformation, W1: In the boom after deformation Dimensions between the outer peripheries of the left and right fourth walls

Landscapes

  • Support Of Aerials (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

L'invention porte sur un procédé de fabrication d'antenne et sur une configuration de section de fixation d'élément d'antenne permettant la fixation extrêmement facile d'un élément d'antenne à un mât, par simple application d'une pression verticale sur le mât après avoir fait passer l'élément d'antenne à travers des trous des parois du tube du mât. Deux nervures sont alignées dans la direction longitudinale de l'axe du mât, de façon à créer des espaces verticaux sur la surface intérieure à la fois des sections de paroi gauche et droite de la paroi du tube de mât. Les parois situées sur le côté extérieur des espaces verticaux entre les deux nervures, sont recourbées de manière significative et font saillie vers la périphérie extérieure, de sorte que les quatre nervures sont déplacées diagonalement dans la direction dans laquelle les espaces verticaux entre chaque ensemble de nervures deviennent plus petits et la distance entre les nervures de gauche et celles de droite devient plus importante. Les quatre nervures sont configurées de façon à mordre dans les sections de paroi sur les deux côtés de chacune des parois extérieures de l'élément d'antenne à partir de chaque diagonale. L'élément d'antenne est ancré dans le mât en tube creux dans un état empêchant la rotation ou un mouvement selon l'axe de l'élément d'antenne.
PCT/JP2010/063191 2009-08-11 2010-08-04 Antenne et procédé de fabrication d'antenne WO2011018969A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009-186882 2009-08-11
JP2009186882 2009-08-11

Publications (1)

Publication Number Publication Date
WO2011018969A1 true WO2011018969A1 (fr) 2011-02-17

Family

ID=43586147

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2010/063191 WO2011018969A1 (fr) 2009-08-11 2010-08-04 Antenne et procédé de fabrication d'antenne

Country Status (2)

Country Link
JP (1) JP2011061769A (fr)
WO (1) WO2011018969A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2621014A1 (fr) * 2012-01-24 2013-07-31 Angel Iglesias, S.A. Système et procédé pour réduire les interférences dans des systèmes de réception de signaux de télévision

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5759563B2 (ja) * 2011-11-21 2015-08-05 マスプロ電工株式会社 アンテナの製造方法及びアンテナ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001284927A (ja) * 2000-04-03 2001-10-12 Nippon Antenna Co Ltd アンテナ素子固着方法およびアンテナ
JP2004048693A (ja) * 2003-04-28 2004-02-12 Dx Antenna Co Ltd アンテナ素子の固定方法とアームに固定されたアンテナ素子
JP2004247915A (ja) * 2003-02-13 2004-09-02 Maspro Denkoh Corp アンテナ及びアンテナの製法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001284927A (ja) * 2000-04-03 2001-10-12 Nippon Antenna Co Ltd アンテナ素子固着方法およびアンテナ
JP2004247915A (ja) * 2003-02-13 2004-09-02 Maspro Denkoh Corp アンテナ及びアンテナの製法
JP2004048693A (ja) * 2003-04-28 2004-02-12 Dx Antenna Co Ltd アンテナ素子の固定方法とアームに固定されたアンテナ素子

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2621014A1 (fr) * 2012-01-24 2013-07-31 Angel Iglesias, S.A. Système et procédé pour réduire les interférences dans des systèmes de réception de signaux de télévision

Also Published As

Publication number Publication date
JP2011061769A (ja) 2011-03-24

Similar Documents

Publication Publication Date Title
US5062619A (en) Non-linear spring
AU2006352372B2 (en) Anchor for handling building elements, in particular a concrete panel
JP4898670B2 (ja) クリップ
US20080141753A1 (en) Method and apparatus for securing connecting ferrules
CN102369332A (zh) 带有弯曲构件的挠性接头结构
US20110011146A1 (en) Method of forming a tenon on one side of a metal plate member
WO2011018969A1 (fr) Antenne et procédé de fabrication d'antenne
JPS6134003B2 (fr)
KR101494879B1 (ko) 거푸집용 체결수단
KR101221365B1 (ko) 호스 클램프
JP2009236469A (ja) 熱交換器
CA2112934A1 (fr) Fibre de renfort pour beton arme
JP5302808B2 (ja) アンテナ素子の固定部の構造及びアンテナの製造方法
JP2012031660A (ja) 鉄筋の連結構造、及び鉄筋の連結工法
JP5302791B2 (ja) アンテナ素子の固定部の構造及びアンテナの製造方法
EP3246103B1 (fr) Tube, matrice, et procédé de fabrication de tube
JP5044481B2 (ja) アンテナ素子の固定部の構造及びその固定方法
JP6229122B2 (ja) 連結部材及びそれを備えた連結構造
KR101889539B1 (ko) 패널 튜브 벤딩장치
JP5695450B2 (ja) 円形ブームアンテナの製造方法
JP5759563B2 (ja) アンテナの製造方法及びアンテナ
JP5629604B2 (ja) 円形ブームアンテナの製造方法
JP2004236100A (ja) アンテナ及びアンテナの製法
US4756070A (en) Method for manufacturing spring assemblies
KR200401084Y1 (ko) 구조물 연결핀

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10808152

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10808152

Country of ref document: EP

Kind code of ref document: A1